Portenstein M T
Portenstein M T operating as a sole owner is licensed in California under CSLB number 490834. The license was first issued in 1986, putting the business at 40 years on the active CSLB roster. It carries a single CSLB classification: B — General Building Contractor. Records show an active surety bond on file with Western Surety Company and an exempt workers' compensation status (no employees on payroll). The business is based in Oak View, in Ventura County, California.
- License Number
- 490834
- Issued
- May 1, 1986
- Status
- CLEAR
- Expires
- Jul 31, 2026
- Entity
- Sole Owner
- Surety
- Western Surety Company
- Bond Number
- 66344184
- Effective
- Jan 1, 2023
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Jun 25, 2024
- Expires
- —
This contractor warrants a closer look before contracting:
- License expires in 52 days
- Workers' comp listed as exempt
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Portenstein M T licensed in California?
Yes. Portenstein M T holds California Contractors State License Board license number 490834. The license was first issued on May 1, 1986. It is valid through July 31, 2026.
What does Portenstein M T specialize in?
Portenstein M T is licensed for one CSLB classification: B General Building Contractor.
Where is Portenstein M T headquartered?
Portenstein M T is headquartered at Po Box 472, Oak View, CA 93022, in Ventura County, California.
Does Portenstein M T have an active surety bond on file with CSLB?
Yes. Portenstein M T has an active California contractor surety bond filed with Western Surety Company.
Does Portenstein M T carry workers' compensation coverage?
Portenstein M T reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Portenstein M T's contractor license?
You can verify Portenstein M T's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=490834.
- License issuedMay 1, 1986
- Bond activeJan 1, 2023
- WC coverage startsJun 25, 2024
- License expiresJul 31, 2026
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